You are leading a project that installs fiber optic cables underwater. The total cost of the project is $$52/$meter to install $4$ km of cable along a lake. It is scheduled to be completed in eight $(8)$ weeks, with the same amount of cable installed each week. We are currently in week $5,$ and your team has installed $1800$ meters.

Calculate the following values $$and interpret your results for the $5$th week: EV$,$ CV$,$ SV$,$ SPI, CPI